Biggest credit card issuers in the U.S. 2007-2023, based on purchase volume
The two biggest credit card issuers in the United States generated more than one third of the overall market's purchase volume in 2023. (JPMorgan) Chase led the ranking for several years in a row, reaching a purchase volume of 1.2 trillion U.S. dollars during that year. The bank also ranked as the top merchant acquirer in the United States. American Express, or AmEx, followed closely, with a purchase volume of slightly over one trillion U.S. dollars.